conformal projection: meaning, definition, pronunciation and examples
LowSpecialized / Technical
Quick answer
What does “conformal projection” mean?
A map projection that preserves angles locally, meaning shapes of small areas are accurately represented.
Audio
Pronunciation
Definition
Meaning and Definition
A map projection that preserves angles locally, meaning shapes of small areas are accurately represented.
A method of representing the spherical Earth (or other celestial body) on a flat surface such that at any point, the scale is the same in all directions, preserving the shapes of small features but distorting their sizes, especially away from key reference lines (like standard parallels).
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling of related words (e.g., 'centre' vs. 'center') may differ in surrounding text.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low and specialized in both varieties.
Grammar
How to Use “conformal projection” in a Sentence
[The] conformal projection [of/for] [area] [verb: distorts/preserves/shows]To use/employ/apply a conformal projection.Vocabulary
Collocations
Usage
Meaning in Context
Business
Rare, except in specialized businesses related to mapping, GIS, or navigation software.
Academic
Common in geography, cartography, geology, and mathematics textbooks and research.
Everyday
Virtually never used in everyday conversation.
Technical
Core term in technical discussions of map-making, geodesy, and complex analysis.
Vocabulary
Synonyms of “conformal projection”
Strong
Neutral
Weak
Vocabulary
Antonyms of “conformal projection”
Watch out
Common Mistakes When Using “conformal projection”
- Using 'conformal' to mean 'following the usual rules' in this context (e.g., 'a conformal map' is not a map that obeys laws).
- Confusing it with 'conical projection', which is a class of projections based on a cone.
FAQ
Frequently Asked Questions
Yes, the Mercator projection is a specific and famous example of a conformal cylindrical projection.
No, for a continuous map of a sphere to a plane, it is mathematically impossible to be both perfectly conformal and equal-area, except for very small regions. They are competing properties.
They are used where preserving angles (and hence shapes of small features) is critical, such as in navigation (for constant bearing courses), topographic mapping, and some meteorological charts.
They severely distort areas, especially regions far from the projection's point or line of true scale (e.g., Greenland appears vastly larger than it is on a Mercator projection).
A map projection that preserves angles locally, meaning shapes of small areas are accurately represented.
Conformal projection: in British English it is pronounced /kənˌfɔːməl prəˈdʒɛkʃən/, and in American English it is pronounced /kənˌfɔːrməl prəˈdʒɛkʃən/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think 'CONFormal' keeps the corners CONforming to their original angles, like a well-behaved (conforming) map that doesn't bend local shapes.
Conceptual Metaphor
A MAPPING IS A TRANSFORMATION. A conformal projection is a specific, 'honest' transformation for angles but a 'liar' about sizes far from the centre.
Practice
Quiz
What is the primary property of a conformal projection?